show_elb()
{
echo -e “================= Listed elastic load balancer ================”
echo -e “”
elb-describe-lbs
echo -e “”
echo -e “============== Delete ELB option is manual ==============”
echo -e “”
}

create_elb()
{

echo -e “Create New ELB Enter elb-name: ENTER to exit: “
read elb_name
if [ "$elb_name" == "" ] ;then
echo “thank you “
exit
fi
echo -e “Enter lb_port:[80] “
read lbport
if [ "$lbport" == "" ] ;then
echo -e “default port 80 is selected”
lbport=80
fi
echo -e “Enter Instance Port :”
read inport
if [ "$inport" == "" ] ;then
echo -e “No selection in config flow try again thank you”
clear
show_elb
create_elb
fi

echo -e “Enter Availibilty zones comma/space : “
chetu=”us-east-1a us-east-1b us-east-1c us-east-1d”
select fname in $chetu;
do
zoner=` echo –availability-zones $fname \ $REPLY `
break ;
done
echo “Require ssl with same elb ?: yes / no”
read ssl_info
if [ "$ssl_info" == "yes" ] ; then
echo -e “Enter ssl Instance Port”
read sinport
if [ "$sinport" == "" ] ;then
echo -e “No selection in config flow try again thank you”
clear
show_elb
create_elb
fi
elb-create-lb $elb_name –listener “lb-port=$lbport,instance-port=$inport,protocol=http” –listener “lb-port=443,instance-port=$sinport,protocol=tcp” $zoner
else
elb-create-lb $elb_name –listener “lb-port=$lbport,instance-port=$inport,protocol=http” $zoner
fi
}

clear
show_elb
create_elb

$ ln -sf /usr/share/zoneinfo/America/Los_Angeles /etc/localtime

With Reference to nice Link :

http://www.hypexr.org/linux_date_time_help.php

* Install jdk 1.5 or more .
* Install ANT : http://www.alliedquotes.com/mirrors/apache/ant/binaries/apache-ant-1.7.1-bin.tar.gz
move the extracted folder to /opt/ant
* Download Jruby binary from : http://dist.codehaus.org/jruby/current/jruby-bin-1.3.0.tar.gz
move the folder to /opt/jruby
* Path setup
edit : /root/.bash_profile
add following line
export ANT_HOME=/opt/ant
export JAVA_HOME=/usr/java/default
export JRUBY_HOME=/opt/jruby
PATH=$PATH:$HOME/bin:$JRUBY_HOME/bin:$JAVA_HOME/bin
export PATH

* Test Install

root@localhost chetu]# which jruby
/opt/jruby/bin/jruby

root@localhost chetu]# which java
/usr/java/default/bin/java

root@localhost chetu]# jruby -v
jruby 1.3.0 (ruby 1.8.6p287) (2009-06-03 5dc2e22) (Java HotSpot(TM) Client VM 1.6.0_02) [i386-java]

* To Test rest of jruby app Please refer this nice link : http://blog.emptyway.com/2008/04/08/120-seconds-guide-to-jruby-on-rails/#comment-37422
+

http://ant.apache.org/manual/index.html

Best
chetaM

* yum install memcache OR form source http://www.danga.com/memcached/download.bml

* Setting config/environment.rb

config.action_controller.session_store = :mem_cache_store

memcache_options = {
:compression => true,
:debug => false,
:namespace => “mem-#{RAILS_ENV}”,
:readonly => false,
:urlencode => false
}

memcache_servers = [ '127.0.0.1:11811' ]

CACHE = MemCache.new(memcache_options)
CACHE.servers = memcache_servers
ActionController::Base.session_options[:cache] = CACHE

* Start Memcached on console OR use mecached.ctl as per convenience :

memcached -d -l 127.0.0.1 -p 11811 -m 512 -P /var/memcached/memcached_2.pid -u root

Yap its works

rpm -Uvh /root/reiserfs-utils-3.6.19-2.4.1.i386.rpm
rpm -Uvh /root/kernel-2.6.18-128.1.6.el5.centos.plus.i686.rpm
locca=`df -lh |grep -r ‘cache’ |cut -d ” ” -f 1`
if [ "$locca" == "" ] ;then
echo “cache Partition not mounted”
else
umount $locca
mkreiserfs -q $locca
echo “ReiserFS partion done”
mv /usr/local/squid/var/cache /usr/local/squid/var/cache.bak
mkdir -p /usr/local/squid/var/cache

mount -t reiserfs $locca /usr/local/squid/var/cache
echo “Mounted successfully”
mv /usr/local/squid/var/cache.bak/* /usr/local/squid/var/cache/
chown -R squid:squid /usr/local/squid/var/cache
chmod -R 0750 /usr/local/squid/var/cache
echo “cache setup done”
grep -Ev ‘cache’ /etc/fstab >/etc/newfstab
mv /etc/fstab /etc/fstab.bakup && cp /etc/fstab.bakup /etc/fstab.bakup.original
echo ” $locca /usr/local/squid/var/cache reiserfs notail,noatime 1 2″ >>/etc/newfstab
mv /etc/newfstab /etc/fstab
echo “fstab updated with new mount info “
fi
else
echo “Exiting squid not found “
fi

echo “Cool you must reboot the system to take effect “
~

* yum install anaconda-runtime createrepo yum-utils anaconda anaconda-help busybox-anaconda mkisofs .

* Mount Centos original cd+dvd copy contents to folder. select the rpms along with dependencies .
Please Refer : http://sipx-wiki.calivia.com/index.php/A_Kickstart_CD_for_sipX_on_CentOS

Next to make iso ready :
Here is that shell script .

#! /bin/bash
cd /myos/
discinfo=`head -1 .discinfo`
createrepo -u “media://$discinfo” -g repodata/comps.xml /myos
isofilename=/root/2d/myosnew.iso
mkisofs -r -R -J -T -v \
-no-emul-boot -boot-load-size 4 -boot-info-table \
-V “SimpleWall″ -p “myos-0.1” \
-A “myos″ \
-b isolinux/isolinux.bin -c isolinux/boot.cat \
-x “lost+found” -o $isofilename /myos
/usr/lib/anaconda-runtime/implantisomd5 $isofilename
~

Burn it , its rocks .

Note : kickstart configuration file plays important role in automated installer

(1) Unpack php_screw-1.5.tgz.

(2) Execute the following command with directory php_screw-1.5

phpize
./configure

(3) Customize encryption / decryption

vi my_screw.h

— Please change the encryption SEED key (pm9screw_mycryptkey) into the
values according to what you like.
The encryption will be harder to break, if you add more values to the
encryption SEED array. However, the size of the SEED is unrelated to
the time of the decrypt processing.

* If you can read and understand the source code, to modify an original
encryption logic will be possible. But in general, this should not
be necessary.

OPTIONAL: Encrypted scripts get a stamp added to the beginning of the
file. If you like, you may change this stamp defined by
PM9SCREW and PM9SCREW_LEN in php_screw.h. PM9SCREW_LEN must
be less than or equal to the size of PM9SCREW.

(4) Compile the decryptor

make

(5) Copy modules/php_screw.so into an extension directory.

ex) cp modules/php_screw.so /usr/lib/php/modules/php_screw.so

(6) Add the next line to php.ini.

extension=php_screw.so

(7) Restart the httpd daemon.

(8) Compile the encryption tool

cd tools
make

(9) Copy the encryptor (“screw”) into an appropriate directory.

ref & download At : http://sourceforge.net/projects/php-screw/

set :application, “app.com”
set :repository,  “root@mapppme.com:/usr/local/src/100809″
set :scm, :git
set :scm_username, “root”
set :runner, “root”
set :use_sudo, false
set :branch, “master”
set :deploy_via, :copy
set :git_shallow_clone, 1
default_run_options[:pty] = true
set :keep_releases, 15

desc “App-production”
task :production do
puts “*** Deploying to the 33[1;41m  production   33[0m servers!"

set :deploy_to,    "/mnt/www/#{application}"
set :deploy_via,    :copy
role :web, "175.141.11.41"
role :app, "175.141.11.41"
role :db,  "175.141.11.41", :primary => true
end

desc "Tasks to execute after code update"
task :after_update_code, :roles => [:app, :db, :web] do

end

namespace :deploy do

set :user, “root”
set :password,”sdfggddg_df2009!”

desc”tail 100  line of log”
task :tail_log, :roles => [:app, :db, :web] ,:only => { :primary => true } do
run “tail -100 #{deploy_to}/shared/log/production.log”
end

desc” log clear “
task :clear_log, :roles => [:app, :db, :web] ,:only => { :primary => true } do
run “cd #{deploy_to}/current/ && rake log:clear”
end

end

###########################################################################################

After git with cap deploy : branch changed to deploy , how can we make update in case very minor change .

solution :

# git branch

*deploy

master

# git branch master

# git chekout

# git pull

restart service

cool its done .

else
echo “OK apache running with multiple processes”
fi
echo $INSTANCE